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Journal of Environmental Sciences 2024年第3期137卷 310-320页

作者： Chunyan Ma Jushuang Pan Cheng Chen yuanyuan dong Feng Yao Fengbang Wang Maoyong Song Key Laboratory of Environmental Nanotechnology and Health Effects Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China No.52 Institute of China North Industries Group Yantai Branch Co.Ltd. Yantai 264000China

The rapid deactivation of cost-effective MnO_(2)-based catalysts in humid air limits their application in practice,and the identification of the role of water in an oxidation process is significant for developing water-resistant MnO_(2)-based ***,CuMnO_(2)showed a20.3%HCHO conversion in 10 hr at room temperature in humid air with relative humidity of 40%,but deactivated in 3 hr in dry *** excellent activity and stability of HCHO oxidation in humid air were attributed to the positive effect of H_(2)O on HCHO oxidation to the H_(2)O-HOCH_(2)OH supermolecule assemblies via hydrogen bonds formed on CuMnO_(2).H_(2)O-HOCH_(2)OH supermolecule assemblies tend to be oxidized to carbonate,which is further oxidized to CO_(2).Furthermore,CuMnO_(2)exhibited a much poorer activity of CO oxidation in humid air,but the CO conversion was still 100%in 10 hr in dry air.H_(2)O showed a competitive adsorption effect to CO on CuMnO_(2).CuMnO_(2)could be applied in HCHO elimination in humid air and CO elimination in dry air.

关键词： H_(2)O-HOCH_(2)OH supermolecule HCHO oxidation Humid air CuMnO_(2) CO oxidation

人工智能赋能思想政治教育的伦理风险及其应对

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北京航空航天大学学报（社会科学版） 2024年第1期37卷 160-165页

作者：董圆圆复旦大学马克思主义学院上海200433

人工智能赋能思想政治教育是思想政治教育创新发展的必然走向。思想政治教育与人工智能的深度耦合,促进了思想政治教育的精准化与“出场”多元化,提升了思想政治教育的实效性,但随着技术向度的增强与工具理性思维的介入,思想政治教育也... 详细信息

人工智能赋能思想政治教育是思想政治教育创新发展的必然走向。思想政治教育与人工智能的深度耦合,促进了思想政治教育的精准化与“出场”多元化,提升了思想政治教育的实效性,但随着技术向度的增强与工具理性思维的介入,思想政治教育也面临着不同维度的伦理风险。通过分析人工智能赋能思想政治教育伦理风险的成因发现,人工智能的类人属性不断强化、算法自主性导致的不可预测性不断增加、风险认知与外在保障具有有限性,导致了伦理风险“在场”的必然性。为了规避伦理风险,要以道御术,守正思想政治教育的价值立场;要以情化人,构建柔性的共情共鸣机制;要以法为界,明确人工智能赋能的何以可为。

关键词：人工智能思想政治教育伦理风险本我师生关系价值共识

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政府推动下企业跨界合作意愿演化博弈研究--基于知识搜索和知识基础视角

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科技管理学报 2024年第3期26卷 11-22页

作者：董媛媛赵慧颖哈尔滨理工大学经济与管理学院黑龙江哈尔滨150080

企业通过跨界合作能够突破行业壁垒获取外部资源从而提升创新活力,知识搜索是促进跨界合作的重要途径。基于知识搜索和知识基础,构建政企三方演化博弈模型,分析了政府推动下企业在跨界合作中的策略选择,并用仿真分析研究了各博弈主体策... 详细信息

企业通过跨界合作能够突破行业壁垒获取外部资源从而提升创新活力,知识搜索是促进跨界合作的重要途径。基于知识搜索和知识基础,构建政企三方演化博弈模型,分析了政府推动下企业在跨界合作中的策略选择,并用仿真分析研究了各博弈主体策略选择的影响因素。研究表明:企业知识基础宽度较高时,合作方企业合作意愿上升;企业跨界知识搜索深度越高,三方跨界合作机会越大;企业合作制定的协议惩罚力度越高,企业进行跨界合作的意愿越高;政府扶持力度有助于企业降低合作成本,促进跨界合作。

关键词：知识搜索跨界合作演化博弈知识基础

苹果CAMTA转录因子家族的鉴定与表达分析

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植物生理学报 2024年第1期60卷 155-166页

作者：董媛媛任家玄车莉莉郭丽丽成永娟毛娟甘肃农业大学园艺学院兰州730070

鉴定苹果钙调蛋白转录激活因子(CAMTA)基因家族成员并对其进行生物信息学分析,探究其在非生物胁迫下的表达特性。结果表明:本文共鉴定了12个苹果CAMTA基因。染色体定位表明,大多数MdCAMTA基因成员位于10号、12号和16号染色体上。理化性... 详细信息

鉴定苹果钙调蛋白转录激活因子(CAMTA)基因家族成员并对其进行生物信息学分析,探究其在非生物胁迫下的表达特性。结果表明:本文共鉴定了12个苹果CAMTA基因。染色体定位表明,大多数MdCAMTA基因成员位于10号、12号和16号染色体上。理化性质分析发现,其CDS序列长度在405~4284 bp间,基因全长在869~8370 bp间,分子量在33480.24~353015.79 Da间,编码蛋白氨基酸数目在135~1428 aa之间,等电点为4.8~5.25,均小于7.0。系统进化分析表明,苹果CAMTA基因划为3个亚族。保守基序分析表明大多数MdCAMTA基因中存在Motif 1与Motif 3。基因结构分析显示MdCAMTAT1和MdCAMTAT7具有相似的基因结构。顺式作用元件预测结果显示,苹果CAMTA基因家族包含植物激素响应元件、逆境胁迫响应、光响应等元件,其中大多数为光响应元件。组织表达模式分析发现MdCAMTA1基因在花、果实、叶、茎、根、种子和幼苗中都有表达。荧光定量分析表明MdCAMTA基因在低温、干旱胁迫条件下大多起正调控作用。初步鉴定苹果CAMTA基因可能参与干旱、低温和盐胁迫应答机制,此为进一步研究苹果CAMTA基因的功能提供理论依据。

关键词：苹果生物信息学分析低温胁迫干旱胁迫盐胁迫

CdS纳米棒/含Ni多钨氧酸盐光催化苯硫酚氧化偶联耦合制氢

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Chinese Journal of Catalysis 2024年第6期61卷 312-321页

作者：任梦真刘天府董媛媛李正杨嘉新刁振恒吕红金杨国昱北京理工大学化学与化工学院原子分子簇科学教育部重点实验室光电转换材料北京市重点实验室北京102488 长春工业大学化学工程学院吉林长春130012

二硫化物是生物和药学有机分子合成的重要中间体,并已广泛用于蛋白质功能化、药物传递系统和智能材料等领域.然而,在传统的合成策略中,常使用昂贵或者有毒的有机氧化剂,这不仅增加了合成成本并造成环境污染,而且合成过程中容易出现选择... 详细信息

二硫化物是生物和药学有机分子合成的重要中间体,并已广泛用于蛋白质功能化、药物传递系统和智能材料等领域.然而,在传统的合成策略中,常使用昂贵或者有毒的有机氧化剂,这不仅增加了合成成本并造成环境污染,而且合成过程中容易出现选择性差、过度氧化等问题.光催化硫醇/硫酚氧化偶联生成二硫化物是一种环境友好的生产路线,但存在催化活性低以及光生载流子不完全利用等问题.因此,开发一种环境友好、成本低廉以及光生电子-空穴高效利用的光催化体系,用于催化硫醇/硫酚氧化偶联并耦合制氢,具有重要的基础研究意义和潜在应用价值.本文构筑了一种Ni_(4)P_(2)/CdS耦合光催化体系,该耦合体系由硫化镉纳米棒(CdS NRs)和含镍的多钨酸盐(Na_(6)K_(4)[Ni_(4)(H_(2)O)_(2)(PW_(9)O_(34))_(2)]·32H_(2)O,简称Ni_(4)P_(2))组成.在光催化氧化4-甲氧基苯硫酚(4-MTP)偶联生成二硫化物的同时,能够释放出氢气,并展现出较好的反应活性.反应4 h后,4-MTP的转化率高达98.39%,二硫化物的选择性为95.0%,二硫化物的收率达24.45μmol,H_(2)的收率为25.96μmol.该耦合体系还展现出了良好的普适性,以–NH_(2),–C_(2)H_(5),–CH_(3),–Cl和–F作为取代基,取代4-甲氧基苯硫酚中的甲氧基并作为底物进行反应,生成相应二硫化物的选择性均超过97%.透射电子显微镜(TEM)和高分辨率X射线光电子能谱(XPS)结果表明,CdS NRs在反应前后形貌保持不变,稳定性较好.X射线光电子能谱表征发现,反应后的CdS NRs表面没有检测到Ni元素的XPS信号峰,说明Ni_(4)P_(2)催化剂附着在CdS NRs的表面,并且能够在反应过程中保持分子的完整性.红外光谱进一步证实了析氢催化剂Ni_(4)P_(2)催化剂的稳定性.此外,荧光光谱、寿命衰减以及光电流测试等系列实验结果表明,CdS NRs与Ni_(4)P_(2)之间存在协同作用,Ni_(4)P_(2)的存在明显地促进光生电子-空穴对的分离和迁移.通过一系列对比实验,证实了可见光在反应中的必要性,以及电子和空穴在反应过程中的关键作用.通过顺磁共振(EPR)检测到了•SC_(6)H_(4)(OCH_(3))自由基中间体的存在,证实了偶联产物是通过硫中心自由基生成的.EPR测试还显示,加入Ni_(4)P_(2)催化剂后,自由基中间体信号增强,进一步验证了Ni_(4)P_(2)可以促进光生电子-空穴对的分离和迁移.基于上述实验和表征结果,我们提出了以下反应机理:在可见光的照射下,4-MTP被空穴氧化脱氢,生成•SC_(6)H_(4)(OCH_(3))自由基.随后,两个•SC_(6)H_(4)(OCH_(3))自由基偶联生成二硫化物.同时,Ni_(4)P_(2)捕获活性氢物种,促进了氢气的析出,最终实现了4-MTP氧化偶联生成二硫化物并耦合制氢的光催化循环.综上所述,本研究成功构筑了Ni_(4)P_(2)/CdS光催化反应体系,实现了有机底物4-MTP的氧化增值与催化制氢的耦合反应.该体系不仅显示出良好的催化活性,还具备较好的稳定性和普适性,为太阳能驱动下的化学转化提供了有效的途径,并为太阳能的可持续利用提供了参考.

关键词：脱氢偶联多金属氧酸盐硫化镉析氢光催化

CdTe/CdSe-sensitized photocathode coupling with Ni-substituted polyoxometalate catalyst for photoelectrochemical generation of hydrogen

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Nano Research 2022年第2期15卷 1347-1354页

作者： Junhao Zhang Mo Zhang yuanyuan dong Congcong Bai Yeqin Feng Le Jiao Hongjin Lv MOE Key Laboratory of Cluster Science School of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 102488China

In terms of photoelectrochemical(PEC)hydrogen evolution,substantial challenge still remains regarding the controllable fabrication of quantum dots(QDs)-sensitized photocathodes with enhanced visible-light absorption,efficient charge carrier separation,and directional migration at the electrode *** this work,the CdTe/CdSe QDs-sensitized photocathodes were delicately constructed on p-type NiO-coated indium tin oxide(ITO)electrodes by spin-coating *** resulting co-sensitized photocathode exhibits a favorable pseudo-Type Ⅱ energetic band alignment that combines the advantages of strong light absorption of constituent QDs as well as the effective and oriented charge separation and *** green LED light illumination,the photogenerated electrons could be effectively transferred to a tetra-nickel-substituted polyoxometalate catalyst for hydrogen production while photogenerated holes will be scavenged at the NiO/ITO *** minimally optimized conditions,the pseudo-Type Ⅱ CdTe/CdSe-sensrtized photocathode yields a photcx:urrent density of over 100 pA/cm^(2) and a Faradaic efficiency of〜100%,which is among one of the most efficient QDs-based photocathode systems coupling with Ni-substituted polyoxometalate catalyst for photoelectrochemical hydrogen generation.

关键词： polyoxometalates quantum dots-sensitized photocathode favorable energetic gradient photoelectrochemical water splitting hydrogen generation

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紫外光接枝对茜草染料染色性能的影响

上海纺织科技 2024年第6期52卷 70-75页

作者：林志富董媛媛吕姣杨依琳大连工业大学纺织与材料工程学院辽宁大连116034

采用紫外线光接枝技术,将偶联剂γ-甲基丙烯酰氧基丙基三甲氧基硅烷(KH-570)和纳米氧化锌(ZnO)接枝到棉织物表面,并以纳米氧化锌作为媒染剂,可以使茜草天然染料在室温、不加盐的条件下上染棉织物。探讨了偶联剂KH-570、光敏引发剂染料... 详细信息

采用紫外线光接枝技术,将偶联剂γ-甲基丙烯酰氧基丙基三甲氧基硅烷(KH-570)和纳米氧化锌(ZnO)接枝到棉织物表面,并以纳米氧化锌作为媒染剂,可以使茜草天然染料在室温、不加盐的条件下上染棉织物。探讨了偶联剂KH-570、光敏引发剂染料质量分数和紫外线照射能量等因素对棉织物染色性能的影响。采用SEM、FTIR、EDS和XPS对染色前后棉织物的表面形貌和结构进行了表征。结果表明,偶联剂KH-570质量分数为3%、光敏引发剂质量分数为3%、紫外线照射能量为15 J/cm_(2)、染料质量分数为25%时,棉织物染色深度K/S值可达8.32,耐皂洗色牢度为4级,耐干、湿摩擦色牢度分别为5级、4~5级。

关键词：茜草染料棉织物紫外线照射光接枝染色性能

Tetrabromobisphenol A exerts thyroid disrupting effects but has little overt impact on postnatal brain development and neurobehaviors in mice

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Journal of Environmental Sciences 2024年第8期142卷 1-10页

作者： Shilin Song yuanyuan Li Lin Lv Mengqi dong Zhanfen Qin State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China College of Resources and Environment University of Chinese Academy of SciencesBeijing 100049China School of Environment Tsinghua UniversityBeijing 100084China

Tetrabromobisphenol A(TBBPA)is a widely used brominated flame *** is evidence showing that TBBPA can exert thyroid disrupting effects in mammals,but different results were also reported,along with inconsistent reports regarding its ***,we investigated thyroid disrupting effects and neurotoxicity of TBBPA(5,50,500μg/(kg·day))to male mice following maternal and direct exposure through drinking water,with the antithyroid drug propylthiouracil(PTU)as the positive *** postnatal day(PND)15,we expectedly observed severe thyroid compensatory hyperplasia and cerebellar developmental retardation in PTU-treated *** highest dose of TBBPA also caused thyroid histological alteration but had no effects on cerebellar development in terms of Purkinje cell morphology and the thickness of the internal granular layer and the molecular layer of the *** puberty and adulthood,the thyroid morphological alterations became more pronounced in the TBBPA-treated animals,accompanied by decreased serum thyroid hormone ***,the 50 and 500μg/(kg·day)TBBPA groups showed a significant decrease in the serum level of serotonin,a neurotransmitter associated with anxiety ***,the highest dose group displayed anxiety-like behaviors in the elevated plus-maze test on PND 35,but this neurobehavioral alteration disappeared on PND ***,no changes in neurobehavioral parameters tested were found in TBBPAtreated animals at puberty and ***,all observations show that TBBPA can exert thyroid disrupting effects but has little overt impact on brain development and neurobehaviors in mice,suggesting that thyroid disruption does not necessarily cause overtly adverse neurodevelopmental outcomes.

关键词： Tetrabromobisphenol A Thyroid disruption Brain development Neurobehavior Cerebellum

Prevalence and factors associated with pentavalent vaccination:a cross-sectional study in Southern China

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Infectious Diseases of Poverty 2023年第5期12卷 32-44页

作者： Jianing Xu Yujie Cui Chuican Huang yuanyuan dong Yunting Zhang Lichun Fan Guohong Li Fan Jiang School of Public Health Shanghai Jiao Tong University School of Medicine227 South Chong Qing RoadShanghai 200025China China Hospital Development Institute Shanghai Jiao Tong UniversityShanghaiChina Department of Child Health Care Hainan Women and Children’s Medical CenterHaikouChina Child Health Advocacy Institute National Children’s Medical CenterShanghai Children’s Medical CenterSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina Department of Developmental and Behavioral Pediatrics National Children’s Medical CenterShanghai Children’s Medical CenterSchool of MedicineShanghai Jiao Tong University227 South Chong Qing RoadShanghai 200025China Pediatric Translational Medicine Institute National Children’s Medical CenterShanghai Children’s Medical CenterSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina Shanghai Center for Brain Science and Brain-Inspired Technology ShanghaiChina

Background Immunization is one of the most far-reaching and cost-effective strategies for promoting good health and saving lives.A complex immunization schedule,however,may be burdensome to parents and lead to reduced vaccine compliance and ***,it is critical to develop combination vaccines to reduce the number of injections and simplify the immunization *** study aimed to investigate the current status of the pentavalent diphtheria-tetanus-acellular pertussis inactivated poliomyelitis andHaemophilus influenzae type B conjugate(DTaP-IPV/Hib)vaccination in Southern China as well as explore the factors in the general population associated with uptake and the differences between urban and rural *** A cross-sectional study was conducted with recently enrolled kindergarten students in Hainan Province between December 2022 and January *** study employed a stratified multistage cluster random sampling *** regarding the demographic characteristics and factors that influence decisions were collected from the caregivers of children via an online *** logistic regression was used to determine the factors associated with the status of DTap-IPV/Hib *** Of the 4818 valid responses,95.3%of children were aged 3-4 years,and 2856(59.3%)held *** rates of the DTaP-IPV/Hib vaccine,from 1 to 4 doses,were 24.4%,20.7%,18.5%,and 16.0%,*** who are concerned about vaccine efficacy[adjusted odds ratio(aOR)=1.53,95%confidence interval(CI):1.30-1.79],the manufacturer(aOR=2.05,95%CI:1.69-2.49),and a simple immunization schedule(aOR=1.26,95%CI:1.04-1.54)are factors associated with a higher likelihood of vaccinating children against DTaP-IPV/*** addition,caregivers in urban areas showed more concern about the vaccine price(P=0.010)and immunization schedule(P=0.022)in regard to vaccinating *** The DTaP-IPV/Hib vaccine coverage rate in Hainan Provinc

关键词： Early child development Pentavalent Diphtheria-tetanus-acellular pertussis inactivated poliomyelitis and Haemophilus influenzae type B vaccine Vaccination coverage Influencing factor China

左炔诺孕酮宫内缓释系统治疗排卵障碍性异常子宫出血的效果

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中国药物滥用防治杂志 2024年第6期30卷 1073-1076页

作者：董媛媛刘孟霞侯晓静张宝文许昌龙湖医院河南许昌461000 河南科技大学附属许昌市中心医院河南许昌461670

目的:探讨排卵障碍性异常子宫出血患者应用左炔诺孕酮宫内缓释系统的止血效果。方法:选取许昌龙湖医院2018年7月—2020年4月收治的97例排卵障碍性异常子宫出血患者作为研究对象,采用信封法将其分为对照组(n=48)和观察组(n=49)。对照组... 详细信息

目的:探讨排卵障碍性异常子宫出血患者应用左炔诺孕酮宫内缓释系统的止血效果。方法:选取许昌龙湖医院2018年7月—2020年4月收治的97例排卵障碍性异常子宫出血患者作为研究对象,采用信封法将其分为对照组(n=48)和观察组(n=49)。对照组给予去氧孕烯炔雌醇片治疗,观察组给予左炔诺孕酮宫内缓释系统治疗,比较两组雌激素水平[黄体生成素(LH)、雌二醇(E_(2))、卵泡刺激素(FSH)水平]、子宫变化情况(子宫内膜厚度、子宫体积)、止血效果(血红蛋白、月经失血图、血量减少1/2时间、完全血止时间)和不良反应发生情况。结果:治疗后,观察组血量减少1/2时间、完全血止时间、Hb水平、子宫内膜厚度、子宫体积少于对照组,PBAC、E_(2)、LH、FSH水平高于对照组(P0.05)。结论:左炔诺孕酮宫内缓释系统可以有效调节排卵障碍性异常子宫出血患者雌激素水平,改善子宫内部情况,进而提高止血效果,同时具有较高的药物安全性。

关键词：排卵障碍性异常子宫出血左诀诺孕酮宫内缓释雌激素